Exceptional long-term performance.
Low-GWP. Low embodied carbon.
Since its invention in 1941, Styrofoam™ Brand extruded polystyrene (XPS) has built a rich, storied heritage as an innovative, sustainable building product – creating an entire insulation material category. Its unique closed-cell structure and rigid foam board technology enables XPS to meet core thermal, moisture, air and vapor performance requirements.
The history of innovation continued in 2019, when DuPont began the process of reformulating Styrofoam™ Brand XPS Insulation to offer a low global warming potential (GWP) version. The transition was completed at the end of 2023. All sites in North America manufacturing Styrofoam™ Brand XPS Insulation now produce a low-GWP formulation signified by a new grey color.
The same long-term value (and R-value)
Durability
Ease of handling
Exceptional thermal and moisture performance
We are committed to transparency in our reporting and quality at every level. Our
products have been evaluated by third parties with certifications that meet or exceed
standards for both sustainability and performance.
¹ We have purchased Renewable Energy Credits to offset our electricity usage since 2016
EPS foam allows the intrusion of water over time.1 The closed-cell structure Styrofoam™ Brand XPS Insulation is the design choice for buildings that withstand the elements and the test of time.
Moisture
XPS structure absorbs significantly less water than EPS products
R-Value
XPS maintains R-value better than EPS when water is present1
Durability
Absorbed water can cause damage in freeze/thaw conditions
1 Billy Connor, April 2019. “Comparison of Polystyrene Expanded and Extruded Foam Insulation in Roadway and Airport Embankments”. Alaska University Transportation Center, University of Alaska Fairbanks, (INE/AUTC 19.08). https://aidc.uaf.edu/projects/2019/comparison-of-polystyrene-expanded-and-extruded-foam-insulation-in-roadway-and-airport-embankments/
Go beyond compliance
We’re going further than ensuring environmental compliance; we’re continuing to advance our 2030 Sustainability Goals and invest in global efforts and technology innovations to help you design and build energy-efficient, resilient and durable structures in this rapidly changing world.
Already manufactured with 100% renewable electricity and a zero-ozone-depletion formula, additional sustainability benefits of Styrofoam™ Brand XPS Insulation include:
The Styrofoam™ Brand was the original XPS, creating the product segment. Rooted in 80+ years of technical innovation, we’re excited to deliver a low-GWP solution. Let’s start a conversation about your next project.
Resources
Styrofoam™ Brand XPS Compliance Letter
Low GWP Grey Styrofoam™ Brand XPS EPD
(as sold in Canada and non-HFC regulated states)
Visit ➞
Physical Property Equivalency Letter
Customer Processing and Transport Safe Handling
Safe Processing & Handling Graphic
Styrofoam™ Brand Product Brochure
Solar Exposure Technical Bulletin
Press Releases
September 9, 2024
English press release →
November 30, 2023
English press release →
June 8, 2023
English press release →
June 6, 2023
English press release →
July 26, 2021
English press release →
February 23, 2021
English press release →
August 13, 2020
English press release →
French PDF ↓
July 16, 2020
English press release →
French PDF ↓
All Six Sides Brochures
Styrofoam™️ Brand Low GWP XPS LEED Optimization Document - Embodied Carbon Assessment